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<head>
<title>Barcode marker example with Three.js</title>
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
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html,body {
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.desktop canvas {
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<h1>Barcode marker example with Three.js</h1>
<p>On Chrome on Android, tap the screen to start playing video stream.</p>
<p>Show <a href="https://github.com/artoolkit/artoolkit5/blob/master/doc/patterns/Matrix%20code%203x3%20(72dpi)/20.png">3x3 marker id 20</a> to camera to display a colorful sphere on top of it. Tap the sphere to rotate it.

<p>&larr; <a href="index.html">Back to examples</a></p>

<script async src="../build/artoolkit.debug.js"></script>
<script src="../js/artoolkit.api.js"></script>
<script async src="js/third_party/three.js/three.min.js"></script>
<script async src="../js/artoolkit.three.js"></script>

<script>

window.ARThreeOnLoad = function() {

	ARController.getUserMediaThreeScene({maxARVideoSize: 320, cameraParam: 'Data/camera_para-iPhone 5 rear 640x480 1.0m.dat',
	onSuccess: function(arScene, arController, arCamera) {

		document.body.className = arController.orientation;

		arController.setPatternDetectionMode(artoolkit.AR_MATRIX_CODE_DETECTION);

		var renderer = new THREE.WebGLRenderer({antialias: true});
		if (arController.orientation === 'portrait') {
			var w = (window.innerWidth / arController.videoHeight) * arController.videoWidth;
			var h = window.innerWidth;
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		document.body.insertBefore(renderer.domElement, document.body.firstChild);

		// See /doc/patterns/Matrix code 3x3 (72dpi)/20.png
		var markerRoot = arController.createThreeBarcodeMarker(20);

		var sphere = new THREE.Mesh(
			new THREE.SphereGeometry(0.5, 8, 8),
			new THREE.MeshNormalMaterial()
		);
		sphere.material.flatShading;
		sphere.position.z = 0.5;
		markerRoot.add(sphere);
		arScene.scene.add(markerRoot);

		var rotationV = 0;
		var rotationTarget = 0;

		renderer.domElement.addEventListener('click', function(ev) {
			ev.preventDefault();
			rotationTarget += 1;
		}, false);

		var tick = function() {
			arScene.process();
			arScene.renderOn(renderer);
			rotationV += (rotationTarget - sphere.rotation.z) * 0.05;
			sphere.rotation.z += rotationV;
			rotationV *= 0.8;

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		};

		tick();

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</body>
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